Time and temperature indication module and manufacturing method therefor
AssigneeTti Co., Ltd.
InventorsBong-Soo Kwon, Ji-Hoon Park, Young-Suk Jeon, Guan-O Lee, Byeong-Han Lim, Jin-Hee Jung, Cheong-Hoon Cho
Life of this patent
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Abstract
The present invention relates to the time-temperature indicating module which allows the user to trigger the bursting of the starting member with a simple motion and generate a crack so that the spread material interposed inside spreads via the crack. The present invention also relates to the manufacturing method of the time-temperature indicating module that strengthens a sealed section of the time-temperature indicating module using laminating by heat sealing to prevent the spread material from leaking or flowing out.
Claims12
A time-temperature indicating module comprising:
- a spread materials interposing layer, where the spread material melts when the temperature changes;
- a spread medium layer provided above the spread materials interposing layer and absorbs the spread material to allow it to disperse;
- an indicating layer provided above the spread medium layer, which enables a user to see from an exterior of the indicating layer whether the spread medium is spread or not;
- and
- a starting member provided on an inside of the spread materials interposing layer, which enables the spread material and spread medium layer to come into contact via a crack generated by external pressure,
- wherein the spread materials interposing layer comprises:
- a first interposed layer where a hole is formed;
- a second interposed layer laminated along an edge of a bottom surface of the first interposed layer;
- and
- a section containing the spread material, which is provided between the first and the second interposed layers and filled with the spread material, and having a feature where the spread material flows through the hole into the spread medium layer.
Dependencies are inferred from the claim text.